Bluetongue — France
Bull semen frozen for several years before being used to inseminate a cow may have sparked an ongoing bluetongue outbreak among farm animals in Europe, according to a genetic analysis of the virus strain.
“It’s the most likely explanation,” says Massimo Palmarini of the University of Glasgow, UK.
Bluetongue is a viral disease spread by biting midges. It can cause a variety of symptoms, from fevers to the bluish tongues that give the disease its name. All ruminants, such as cattle, goats
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